Gas-engine.



"PATBNTED MAR. 10, 1908. H. A. HETTINGER.

GAS ENGINE.

APPLICATION FILED MAY 13. 1907.

2 SHEETS-SHEET 1.

N6.881,582. I PATENTED MAR.10,19.08. H. A. HETTI-NGER.

GAS ENGINE.

APPLICATION FILED MAY 13. 1907.

2'SHEETS-SHBBT 2.

ii i1 T.

HENRY A. HETTINGER, OF BRIDGETON, NEW JERSEY.

GAS-ENGINE.

Specification of Letters Patent.

Patented March 10, 1908.

Application filed May 13, 1907. Serial No. 373,362.

T 0 all whom it may concern:

Be it known that I, HENRY A. HETTINGER, a citizen of the United States, residing in Bridgeton, New Jersey, have invented certain Improvements in Gas-Engines, of which the following is a specification.

()ne object of my inventionis to provide a gas engine with relatively simple and eflective speed governing means so designed and constructed as to permit the operation of the engine being controlled by hand when this is desirable.

Another object of the invention is to provide. automatic speed controlling mechanism actuated by a centrifugal governor and so arranged as to regulate not only the opening of the exhaust, but also the sparking in the cylinder.

Another object of the invention is to pro videsimple and cil'ective means for automatically controlling the adi'nission of the charge to the cvhnucr of a gas engine.

These objects I attain as hereinafter set forth, rclcrcncc being had lo the accompanying drawings, in which 1' Figure l, is a side elevation, partly in vertical section, illustrating the constructionof a gas engine made according to my invonlion; Fig. 2, is a plan view of the engine illustratcd in Fig. 1; Fig. I), is a perspective view oi the cccent-rically supported lever to which attached hand controlling mechanism; Fig. 4, is a perspective view of the governor weight carried on the ll' v wheel; Fig. 5, is a vertical section of the spring contactt'orming part oi the sparking system, and Fig. 6, is a front elevation of a portion of the lever can rying the contact illustrated in Fig. 5.

in the above drawings, A represents the base frame of an explosion engine provided with a cylinder (1, a piston 1 and a. main shaft on which is a crank (1" attached to the piston a by means of a conilccling rod (1,- there being also il v wheels (1 and (I5 mounted on the main shaft. The exhaust valve of the engine is illustrated at 1) and has a rod 1) which extends parallel to the line of the. cylinder a; the valve being normally kept seated by means of a spring 1 acting between a collar on the rod and the valve asing ()ne of the tly wheels has pivoted to it a weight (1, preferably of the. form shown in Fig. l, and normally pressed toward the shaft by means of a spring. A shaftor'stud it extends from the side of the engine base substantially parallel to the main shai t and has mounted upon it an eccentric d to which is lixed an arm d This arm is movable between the two extreme positions indicated in Fig. 1, by means of a controlling lever d" fixed to a shaft (1 in turn attached to the arm'through a slotted lever arm (i The eccentric d has mounted upon it a sleeve 6, from one side of-which rejects an arm 6 capable of being engaged y an arm 0 projecting from one side of the governor Weight (J when this has been turned on its pivot to a predetermined extent under the action of centrifugal force. Opposite the arm 6 there also projects from the sleeve e a second arm Attached to the sleeve e, or, in fact, to any other desirable part of the structure E com prised by the members e, e and c is a ilat spring c engaging also a pin or pro jccting lug a on the edge of the frame so as to maintain the arm a normally in contact with a second stop a.

A cam lever 1* is pivoted to the engine frame at f and extends upwardly so as to be capable of being brought into engagement with the valve rod 1); there being mounted on it a roller f designed to be engaged by a cam 9 carried on a short shaft (i provided with suitable bearings. This -cam is fixed to said shaft which is turned through a gear wheel 9 moshing with a pinion 9' fixed to the main shaft oi the engine. The cam lever F is provided with a n-ojcction f so placed as to be engaged by tie arm c of the structure when this latter is in a certain position and thereby be maintained in its extreme position against the action of the sprin I) on the valve rod 1). It will be noted t at this spring is capable not only of holding the exhaust valve 1) closed, but by reason of the fact that the valve rod 1) engages the end of the cam lever F, also maintains or tends to maintain this lever in such position that its rollcrf will be engaged by the projecting portion 9 of the cam once in every revolution. W hen, however, the structure E is turned on the eccentric d or when the ecccntrio itself is properly turned, the end of the arm c engages the projection f and thereby prevents mox'wnncnt ot' the lever F and the closii'ig oi the exhaust valve 1). The cam lover F carries in addition to its roller f, a contact device 11, as illustrated in Fig. 5, which consists of a tubular bolt h having a head It and a nut k electrically insulated from the lever i by means of a fiber bushing h. Within this tubular bolt is carrieda spring actuated plunger h having nuts k (:nndn (at-n the $11"- in w Visit @1 :1 when the fei n tha head 1S mnunteii 2m y so n'ni lever i 1; in its 1 minai POL i inf closed ccn'ldition m; the exhaust v Q I), said. cam Wlii any '0 the plunger 71;,

therahy wmipi atmg the hi. cmiismg a spark to he tornin er in 2&1)? 0i th s Wei m; cumin. and.

thh prothn i 00 59011 that nni'h r ilmjlniti u n- QXhQ-JISL valve 1) \viii ho npnncii every two re vuhitiuns in the, main in that ths gem: whim-i g is my myth as i'i'nire thn uznn Ming nnn'nt with the icvm' i an tr in 5 the min Z'Uii cngi n0 out and HS l-1wgn thy (:UiW'Ni inn hat n e valve i), with: #1011 thu engine ma 1 its twine air is drawn in ins mi. of a new char There is cnnseeiniently no *2 n'e in t ,idor and, more- OYBI, g to the i vt the lei F heid by it prejsctiimf" and the mrm in the pOSlL-iOKl away ii'ujni the G, the cam g aa n'mt the srii'ig contact plunger i re is cons g i ineml q 110 s with formed in incisr,

an as 1 is iniinev.1 iii'mxi shaft, the :J fumed the 1 to ciezn {hi2 prujeutionj' there faive to sings in h the mm 9 had to nm'i'ti'oi the spmwi. oi the i oi the and independan b may he .i b understood that i on! chi anon the ,1;-

i V tnmeii so its tn ltLISC the end ii simian it to Nigel-g0 the pro 1i 11b; 2.- dos when.

i M nu l in the u; osne done. by means of the i iiii'vctinn or beyond the pnini at which ihv prnjvviinitf will vngngu i'nv vmi of ihv h-wi (5 tho spark is iUTIHHi m 01' Min SH'HiHS uni] lhn (Xhntisi min is pm'iniliwi in l't'llhliii 'JiUSKd vxw n \i'hnn pvi'imiimiiiv npi-nmi h iilP (11111 i l'filil the nhnw it \\'iii hv npniwinimi that thvi'e rtnnsiiivmhiv saving; ni ihv hnltvi I hcvznwe the (.iiulii is vnmplvimi tn ini'in ihv spark uni) Wiii'ihihfl'fl is :1 i-inn'gv in ho vx-- piodmi in the \iii1(i(l'. MM'OHYM', ih nun-In anisin inr unnti'oiiing ihv sparking :nni lhu npQia-iinn oi the exhaust vniw is (ii iii( siin phi-st pi ihio nziiin-e Hilli yet of :i snhsmniini mmstinctinn which is not like-h in i'vqnii'v nttvminn 0A lipfii'fs \nnlm" npvi'niing ('(HHih iiUnS.

i (iiiilil as niy inwnitinii:

i. The unnihinssiimi in a gas engine hnving an exhaust VitiYt, of vznn npvrnimi h'nni the main shaft, at structure :iuiiniiud h said czi-ni, to pei'inili 'nliy upon the axhzium Yai e, cei'iti'ifngzii governor iinwhnnisin in nhiding it lever ninvahie into a, position in ,ii the cum animated structure sn us in huh] the vxhznist \aivv (spun iniivpundmiiiy n'i" th i'liiii iillti nnuns iiititpfl'iltifili', ni the QUYQL'HUY nnx-imininin including 2 hit-11d 0pm nicii enwnivic for moving s'siiii icvvi' {it \viii intn sniii position.

.1. The cnnihiimfinn in nengine hmv-- ing; an a xhnnfl \"LiVfi, ni imam inerimiingg {L win iictiiznuii from the main shaft Oi the onginv for pvi'iniimn h; opening the v0, (011-- nan-ting; I110 gnvei'nai' and the \A said eccentric ini'hypcnd- Latin the. exhaust vain-1 in its open position, snhstzintiaii as (iCSK'ZIiilfli.

3. The combination of a engine having an oxhnuat waive, at rod for iniiiii valve, a movable structure operative on said rod in open the valve, an. electrical (Olliilci piece *ancied by said structure, a. shaft driven from the main shaft of the engine, having cam operative. on the structure and carrying an ciei-tiicjsii contact lnGl'i bQl. n mble of cm gaging mid contm-t piece, with lillllb i'nr hoiding sziiii structure in 1H tinn to prevent engagement nf the contact in nihor with the nuniziut piece, mini :iisn to liminiain the valve in its open pmitiun, suLt-timtistily as de scribed.

4-, The uomhination in a gas engine having an exhaust valve of [1, rod for said valve, ii mmahie structure operative on said rod to open the valve, 1m eiecti'icni contact pince- Qfzfifikid by said structm {L member diivcn from. ihc main .i it of the engine, iliLVilig :31 mm operative to muse lSUFVGlUCIlh efiihe structure and cnn ying a i (iimfi-Iiiffti wntiict niemi fI capniin of engaging said contmii. km ,a'iih. it uinii'ii'iu i QUVQFEIQY impiiivlc ni enti nfthi gUVLTDOI' and the mun, tn main--- holding said structure in position to prevent engagement of the contact member with the contact piece and also of holding the valve in its open position, substantially as described.

5. .The combination in a gas engine having an exhaust valve, of a rod for said valve, a movable structure operative on said rod to open the valve, an electrical contact piece carried by sald structure, a member driven an exhaust valve, of a'rod for said valve, a

- movable structure operative on said rod to open the valve, an electrical contact piece carried by said structure, a member driven from the' main shaft of the engine having a cam operative on the structure and carrying an electrical contact member capable of engaging said contact eiece, a centrifugal governor capable of'h position to prevent engagement of the contact member with the contact piece and of holding the valve in its open osltion, with a sleeve operative at will for he ding the structure in position to maintain the exhaust valve 0 en and'the contact piece out of the path 0 the contact member, substantially as described.

7. The combination in a gas engine having an exhaust valve, of a rod operative thereon, a lever capable of engaging said rod, 9. contact piece'on the lever, a wheel driven from the'main shaft of the engine, a contact member on the wheel capable of engaging the contact piece, a cam capable of periodically moving the lever to 0 en theexhaust valve, and a governor capa )le of maintaining the lever in position to hold the exhaust valve open and. also of preventing the contact piece from being engaged by the contact member, substantially as described.

8. The combination in a gas engine having an exhaust valve, of a rod operative thereon,

alever capable of engaging said rod and carrying a contact piece, a wheel driven from the main shaft of the engine having a conding said structure in tact member capable of engaging the contact piece, acam capable of periodically moving the lever to open the valve, and a governor capable of maintaining the lever in osition to hold the exhaustvalveopen am of preventing the contact piece .being engaged by the contact member, with means operative at will for maintaining the lever in said latter position, substantially as de-' 9. 'lhecombination in a gas enginehaving an exhaust valve, of "a rod for operating the valve, acontact piece, a rotatable structure having a cam capable of periodically moving the rod to open the exhaust valve and also of moving said contact piece, a-contact member operated from the main shaft of the engine and capable of engaging the contact piece under predeterminer eccentric, a lever mounted thereon, a governor weight for the engine capable of mov-' ing-the lever to maintain the exhaust valve open and the contact piece in position out of t 1e path of the'c'ontact member, and means for maintaining said lever in a )osition out of the path of the governor weig t, substantially as described.

10. The combination in a gas engine having an exhaust valve, of a rod connected to said valve, a lever, a shaft having a cam car pable of moving said lever to cause it to 0 en the exhaust valve, a rotatable structure a so carried on the shaft and provided with a contact member, means for. driving the shaft from the engine, a contact piece carried on the lever so as to be capable of engagement with the contact member, an eccentric, a'lever moun-tedthereon, a governor weight for the engine capable of moving under conditions of excessive speed to engage one arm of the lever and thereby move saidlever into a position to hold the valve operating lever with the exhaust valve 0 en and the contact piece out of the path of t e contact member, and a device for turning said ecentrically "mounted lever at will, substantially as described.

In testimony whereof, I have signed my conditions, an

name to this specification, in the presenceof two subscribing witnesses.

HENRY A. IIETTINGER.

Witnesses DAVIQ M. Bowen, J. EDGAR STANGER. 

